Home / 3,124.41-4,311.70-1,798.10

Finding the Fourth Proportional to 3,124.41, 4,311.70 and 1,798.10

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Solution

The fourth proportional to 3,124.41, 4,311.70 and 1,798.10 is: 2,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.41 : 4,311.70 = 1,798.10 : x
  2. Step 2: Convert to fraction form
    3,124.41/4,311.70 = 1,798.10/x
  3. Step 3: Cross multiply
    3,124.41x = 4,311.70 × 1,798.10
  4. Step 4: Simplify right side
    3,124.41x = 7,752,857.89
  5. Step 5: Solve for x
    x = 7,752,857.89/3,124.41
  6. Step 6: Final answer
    x = 2,481.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.